/* =========================================================
   TJKT ONE — Lab Debian 12 Server
   Tema: Hitam & Emas
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  --bg: #08080a;
  --bg-panel: #121215;
  --bg-panel-2: #1a1a1e;
  --bg-elevated: #201d16;

  --gold: #d4af37;
  --gold-bright: #f4dd8a;
  --gold-deep: #8a6d1f;
  --gold-dim: rgba(212,175,55,0.18);

  --text: #f2ede0;
  --text-muted: #a39c8a;
  --text-faint: #6b6558;

  --border: rgba(212,175,55,0.22);
  --border-soft: rgba(212,175,55,0.10);

  --danger: #e0674a;
  --ok: #7fbf6a;

  --radius: 10px;
  --sidebar-w: 272px;

  --font-display: 'Cinzel', serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(212,175,55,0.06), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
}

a{ color: var(--gold-bright); text-decoration: none; }
a:hover{ text-decoration: underline; }

::selection{ background: var(--gold-deep); color: #0a0a0a; }

/* Focus visibility for keyboard nav */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce){
  *{ animation: none !important; transition: none !important; }
}

/* =========================================================
   APP SHELL — topbar + sidebar (hamburger) + content
   ========================================================= */

.app-shell{
  display: flex;
  min-height: 100vh;
}

/* --- Topbar --- */
.topbar{
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 18px;
  background: linear-gradient(180deg, #0d0d0f 0%, #0a0a0c 100%);
  border-bottom: 1px solid var(--border);
  z-index: 40;
}

.hamburger{
  width: 42px;
  height: 42px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  flex-shrink: 0;
}
.hamburger span{
  width: 20px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}
.hamburger[aria-expanded="true"] span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

.brand{
  display: flex;
  align-items: baseline;
  gap: 8px;
  white-space: nowrap;
  overflow: hidden;
}
.brand-mark{
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--gold-bright);
  font-size: 18px;
}
.brand-sub{
  color: var(--text-faint);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.topbar-spacer{ flex: 1; }

.topbar-tag{
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-faint);
  border: 1px solid var(--border-soft);
  padding: 5px 10px;
  border-radius: 999px;
}

/* --- Sidebar --- */
.sidebar{
  position: fixed;
  top: 64px;
  left: 0;
  bottom: 0;
  width: var(--sidebar-w);
  background: #0c0c0e;
  border-right: 1px solid var(--border);
  overflow-y: auto;
  transform: translateX(0);
  transition: transform .28s ease;
  z-index: 35;
  padding: 18px 0 40px;
}
body.nav-closed .sidebar{ transform: translateX(calc(-1 * var(--sidebar-w))); }

.nav-section-label{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding: 14px 22px 8px;
}

.nav-list{ list-style: none; margin: 0; padding: 0; }

.nav-item a{
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 22px;
  color: var(--text-muted);
  font-size: 14.5px;
  font-weight: 500;
  border-left: 2px solid transparent;
  text-decoration: none;
}
.nav-item a:hover{
  color: var(--gold-bright);
  background: var(--gold-dim);
}
.nav-item.active a{
  color: var(--gold-bright);
  border-left-color: var(--gold);
  background: var(--gold-dim);
}
.nav-step{
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold-deep);
  width: 20px;
  flex-shrink: 0;
}
.nav-item.active .nav-step{ color: var(--gold); }

/* --- Content --- */
.content{
  margin-left: var(--sidebar-w);
  margin-top: 64px;
  padding: 34px 40px 80px;
  width: 100%;
  max-width: 980px;
  transition: margin-left .28s ease;
}
body.nav-closed .content{ margin-left: 0; }

@media (max-width: 860px){
  .content{ margin-left: 0; padding: 26px 18px 60px; }
  .sidebar{ transform: translateX(calc(-1 * var(--sidebar-w))); box-shadow: 20px 0 40px rgba(0,0,0,.5); }
  body.nav-open .sidebar{ transform: translateX(0); }
  .brand-sub{ display: none; }
}

/* Overlay saat sidebar terbuka di mobile */
.nav-overlay{
  position: fixed; inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 30;
  display: none;
}
@media (max-width: 860px){
  body.nav-open .nav-overlay{ display: block; }
}

/* =========================================================
   TYPOGRAPHY / CONTENT ELEMENTS
   ========================================================= */

.page-eyebrow{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 10px;
}

h1.page-title{
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.15;
  margin: 0 0 14px;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  padding-bottom: 18px;
}
h1.page-title .gold{ color: var(--gold-bright); }

.lede{
  color: var(--text-muted);
  font-size: 16px;
  max-width: 68ch;
  margin: 0 0 30px;
}

h2.section-title{
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--gold-bright);
  margin: 40px 0 12px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}
h2.section-title .num{
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--gold-deep);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2px 7px;
}

h3{
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--text);
  margin: 22px 0 8px;
  font-size: 16.5px;
}

p{ color: var(--text-muted); }
.content strong{ color: var(--text); }

.card{
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin: 16px 0;
}

.note{
  border-left: 3px solid var(--gold);
  background: var(--gold-dim);
  padding: 12px 16px;
  border-radius: 0 8px 8px 0;
  margin: 18px 0;
  font-size: 14.5px;
  color: var(--text);
}
.note strong{ color: var(--gold-bright); }

.warn{
  border-left: 3px solid var(--danger);
  background: rgba(224,103,74,0.10);
  padding: 12px 16px;
  border-radius: 0 8px 8px 0;
  margin: 18px 0;
  font-size: 14.5px;
  color: var(--text);
}
.warn strong{ color: var(--danger); }

/* --- Code / terminal blocks --- */
.term{
  background: #0c0c0d;
  border: 1px solid var(--border);
  border-radius: 10px;
  margin: 14px 0 20px;
  overflow: hidden;
}
.term-bar{
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  background: #151513;
  border-bottom: 1px solid var(--border-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-faint);
}
.term-dot{ width: 9px; height: 9px; border-radius: 50%; background: var(--gold-deep); opacity: .8; }
.term pre{
  margin: 0;
  padding: 16px 18px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.65;
  color: #ecdca8;
}
.term pre .c{ color: var(--text-faint); } /* comment */
.term code{ font-family: var(--font-mono); }

code.inline{
  font-family: var(--font-mono);
  background: var(--bg-panel-2);
  border: 1px solid var(--border-soft);
  padding: 1px 6px;
  border-radius: 5px;
  font-size: 13px;
  color: var(--gold-bright);
}

table{
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 22px;
  font-size: 14px;
}
th, td{
  border: 1px solid var(--border-soft);
  padding: 9px 12px;
  text-align: left;
  color: var(--text-muted);
}
th{
  color: var(--gold-bright);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  text-transform: uppercase;
  background: var(--bg-panel);
}

ol.steps, ul.plain{
  padding-left: 22px;
  color: var(--text-muted);
}
ol.steps li, ul.plain li{ margin-bottom: 8px; }

.pill-row{ display:flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 26px; }
.pill{
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  border: 1px solid var(--border-soft);
  padding: 5px 11px;
  border-radius: 999px;
}

.page-nav{
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-top: 46px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.page-nav a{
  border: 1px solid var(--border);
  padding: 10px 16px;
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
  text-decoration: none;
}
.page-nav a:hover{ border-color: var(--gold); color: var(--gold-bright); }

/* =========================================================
   DASHBOARD / HOME GRID
   ========================================================= */

.hero-panel{
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 30px 32px;
  background:
    linear-gradient(135deg, rgba(212,175,55,0.08), transparent 55%),
    var(--bg-panel);
  margin-bottom: 30px;
}

.module-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 16px;
  margin-top: 10px;
}

.module-card{
  display: block;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  border-radius: 12px;
  padding: 20px;
  color: var(--text);
  transition: border-color .2s ease, transform .2s ease;
}
.module-card:hover{
  border-color: var(--gold);
  transform: translateY(-2px);
  text-decoration: none;
}
.module-card .m-step{
  font-family: var(--font-mono);
  color: var(--gold-deep);
  font-size: 12px;
  margin-bottom: 10px;
  display: block;
}
.module-card h3{ margin: 0 0 6px; font-size: 16px; color: var(--gold-bright); }
.module-card p{ margin: 0; font-size: 13.5px; color: var(--text-muted); }

/* =========================================================
   CHAT ROOM
   ========================================================= */

.chat-wrap{
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 18px;
  height: calc(100vh - 64px - 34px - 34px);
  min-height: 480px;
}
@media (max-width: 860px){
  .chat-wrap{ grid-template-columns: 1fr; height: auto; }
}

.chat-panel{
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-panel);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.chat-messages{
  flex: 1;
  overflow-y: auto;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.msg{
  max-width: 82%;
  padding: 9px 13px;
  border-radius: 10px;
  background: var(--bg-panel-2);
  border: 1px solid var(--border-soft);
  font-size: 14px;
}
.msg .msg-head{
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold-bright);
  margin-bottom: 4px;
}
.msg .msg-time{ color: var(--text-faint); }
.msg.me{ align-self: flex-end; border-color: var(--gold-dim); background: var(--gold-dim); }
.msg.system{
  align-self: center;
  background: transparent;
  border: none;
  color: var(--text-faint);
  font-size: 12px;
  font-style: italic;
}

.chat-form{
  display: flex;
  gap: 10px;
  padding: 14px;
  border-top: 1px solid var(--border-soft);
}
.chat-form input[type="text"]{
  flex: 1;
  background: var(--bg-panel-2);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 11px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
}
.chat-form input[type="text"]:focus{ border-color: var(--gold); }

.btn-gold{
  background: linear-gradient(180deg, var(--gold-bright), var(--gold-deep));
  color: #16130a;
  border: none;
  border-radius: 8px;
  padding: 11px 20px;
  font-weight: 700;
  cursor: pointer;
  font-size: 14px;
  letter-spacing: .02em;
}
.btn-gold:hover{ filter: brightness(1.08); }

.users-panel{
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-panel);
  padding: 16px;
}
.users-panel h4{
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--gold);
}
#userList{ list-style: none; margin: 0; padding: 0; }
#userList li{
  padding: 7px 0;
  border-bottom: 1px solid var(--border-soft);
  font-size: 13.5px;
  color: var(--text-muted);
}
#userList li:last-child{ border-bottom: none; }

/* --- Name modal --- */
.modal-overlay{
  position: fixed; inset: 0;
  background: rgba(4,4,5,0.82);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 60;
}
.modal-box{
  width: min(380px, 92vw);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 26px;
  text-align: center;
}
.modal-box h2{
  font-family: var(--font-display);
  color: var(--gold-bright);
  margin: 0 0 8px;
  font-size: 22px;
}
.modal-box p{ margin: 0 0 18px; font-size: 13.5px; }
.modal-box input[type="text"]{
  width: 100%;
  background: var(--bg-panel-2);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text);
  font-size: 14.5px;
  margin-bottom: 14px;
  text-align: center;
}
.modal-box input[type="text"]:focus{ border-color: var(--gold); }

footer.site-footer{
  color: var(--text-faint);
  font-size: 12.5px;
  text-align: center;
  padding: 24px 0 4px;
}